#037366
Closest named color: Dark Aquamarine (#017371). oklch(49.9% 0.089 181.4), rgb(3, 115, 102).
Aa
White text reads best on this color (5.75:1).
About this color
#037366 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 50%, its chroma 0.089 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.018 away. White text reads best on it, at 5.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.64:1 |
| White text | 5.75:1 |
Values
| HEX | #037366 |
| RGB | rgb(3, 115, 102) |
| HSL | hsl(173, 95%, 23%) |
| OKLCH | oklch(49.9% 0.089 181.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #037366 | 5.75:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #037366 | 3.64:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #037366 text on white | 5.75:1 | AA | Lc 78.3 | Fine for body text |
| #037366 text on black | 3.64:1 | AA large text | Lc -23.5 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFDA
oklch(88.6% 0.024 180.6)
-
Step 300
300
#A3CAC2
oklch(80.9% 0.043 181.3)
-
Step 400
400
#6EAFA3
oklch(70.7% 0.069 181.2)
-
Step 500
500
#429B8D
oklch(63.2% 0.088 181.5)
-
Step 600
600
#148577
oklch(55.5% 0.095 181.7)
-
Step 700
700 (this color)
#037366
oklch(49.9% 0.089 181.4)
-
Step 800
800
#0A5C51
oklch(42.7% 0.074 180.7)
-
Step 900
900
#164B43
oklch(37.6% 0.057 181.3)
-
Step 950
950
#0F2C27
oklch(26.9% 0.036 180.5)
#037366 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #6D6B66 | 0.094 |
| Deuteranopia (no green cones) | #606267 | 0.089 |
| Tritanopia (no blue cones) | #00756F | 0.014 |
| Achromatopsia (no color) | #666666 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #037366
#037366
oklch(49.9% 0.089 181.4)
- #8C4C5F
#8C4C5F
oklch(49.9% 0.089 1.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #037366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.018
- Deep Turquoise #017374 ΔE 0.023
- Bluegreen #017A79 ΔE 0.032
- Dark Aqua #05696B ΔE 0.036
- Deep Aqua #08787F ΔE 0.039
- Dark Green Blue #1F6357 ΔE 0.049
- Teal #008080 ΔE 0.049
- Petrol #005F6A ΔE 0.068
Use #037366 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.